the boston marathon bombers asbrothers,tamerlananddzhokhar tsarnaev. they are from a predominantly muslim region in russia. the 19-year-old brother believed to be extremely dangerous possibly armed with explosives on his person. unclear whether he was injured in the shoot outlast night in which his 26-year-old brother died. it's unclear whether he's injured and hiding somewhere and unable to move, whether he moved, they don't know right now. we're told that the brother was wearing explosives and a triggering device when he died which is why they're worried -- >> the older brother. >> the older brother. this is why they're worried the younger brother could be in a similar situation. this happened overnight and intensified. police say the suspects robbed a convenience store, shot and killed an m.i.t. police officer. i was on the air live when that happened last night, wolf. and as you know, it was no expectation at that time that there was any relation between the two things. but there ended up being. >> and when they heard of a convenience store robbery, stuff like that happens. >> right.

, when i saw like it says, this mightbetamerlan. and,again, might be. and i clicked on that and there is this click, and, by the way, i went in there also, you know, some time ago, and i thought to myself, what an ugly boy found in that clip. that's, you know, even i went in there because, you know, in youtube, there is always something pop up. you watching something like, you know, the secrets, listening to that, and there is something in it unrelated will come up and then it goes on and on and on and on. and then you're just, you know, being -- have interest just to see what shift is that. sometimes there is a lot of it. what is that? you click on it and i heard it this morning, this morning. and i thought, if i was there, why wouldn't just, you know, just out of curiosity tamerlan wouldn't go in there also. >> would you say your nephews were devout practicing muslims? >> he was not devout practicing. but just recently maybe two years ago he started praying five times a day, which is, i don't see anything bad in it, you know? it takes off your mind, five times, you

thattamerlanwaskilled. >> learn what? >> that your nephew had been found? >> maybe i don't know. maybe one hour ago in talking on the phone with everybody. >> it's hard for you. >> i'm sorry he did this. it's so crazy. it's not possible. i can't believe it. when i heard this on tv news, i was thinking how can it be like this? it's crazy. unbelievable. >> and where does your other brother live? >> let's go with me. you want to go there? >> okay. >> drive after me and you will see it. >> can you wait just a minute and i'll get my notepad so i can write down the address? >> sure. 5 brock court, 20886. right now i'm going there. >> okay. okay. >> we're very sorry. >> we have been listening to that out of maryland. >> a press conference with the man who is said to be the uncle. >> ruslan tsarni. uncle of the tsavraev brothers. the older one, tamerlan, killed in a shoot-out. and dzhokhar, still wanted. an sbns mintense manhunt. the city is in lockdown. cabs canceled, buses canceled, air space over the city of boston shut down, an intense manhunt for the 19-year-old, a suspect in the boston marat